CN115466350A - Reactive chain extender with high-activity groups and application thereof - Google Patents

Reactive chain extender with high-activity groups and application thereof Download PDF

Info

Publication number
CN115466350A
CN115466350A CN202111433721.8A CN202111433721A CN115466350A CN 115466350 A CN115466350 A CN 115466350A CN 202111433721 A CN202111433721 A CN 202111433721A CN 115466350 A CN115466350 A CN 115466350A
Authority
CN
China
Prior art keywords
chain extender
reactive
parts
transfer agent
methacrylate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111433721.8A
Other languages
Chinese (zh)
Inventor
吕浩东
宋唯立
沈佳兴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Handian Technology Co ltd
Original Assignee
Shanghai Handian Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Handian Technology Co ltd filed Critical Shanghai Handian Technology Co ltd
Priority to CN202111433721.8A priority Critical patent/CN115466350A/en
Publication of CN115466350A publication Critical patent/CN115466350A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
    • C08F220/32—Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals
    • C08F220/325—Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals containing glycidyl radical, e.g. glycidyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/38—Polymerisation using regulators, e.g. chain terminating agents, e.g. telomerisation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C08L67/03—Polyesters derived from dicarboxylic acids and dihydroxy compounds the dicarboxylic acids and dihydroxy compounds having the carboxyl- and the hydroxy groups directly linked to aromatic rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Polyesters Or Polycarbonates (AREA)

Abstract

The invention discloses a reactive chain extender with high active groups, which comprises the following raw materials in parts by weight: 900-1100 parts of solvent, 1-5 parts of dispersant, 90-110 parts of reaction monomer, 0.1-1 part of initiator and 0.5-2 parts of chain transfer agent. According to the invention, by adopting the reaction monomer combination of styrene, glycidyl methacrylate, methyl methacrylate and butyl methacrylate, epoxy groups can be distributed more uniformly in molecules, and the utilization rate of epoxy reaction groups is improved. And the chain extender of dodecyl mercaptan and benzoyl peroxide as a catalyst are introduced, so that the molecular weight of the chain extender can be controlled, and meanwhile, the dispersing agent of calcium chloride, sodium hydroxide and styrene maleic anhydride copolymer are added, so that the migration effect of the chain extender in thermoplastic polyester is improved, the residue in the extrusion granulation process of a screw extruder is reduced, the discharge speed of the screw extruder is stable, and the problems of material blockage and local crosslinking cannot occur during long-time granulation.

Description

Reactive chain extender with high-activity groups and application thereof
Technical Field
The invention relates to a reactive chain extender with high active groups, relates to C08F, and particularly relates to a high molecular compound obtained by reacting carbon-carbon unsaturated bonds.
Background
In the processing process of the thermoplastic polyester, the degradation can cause the molecular mass reduction of the polymer, the number of terminal carboxyl groups is increased, the mechanical property of the thermoplastic polyester is influenced, the problems of brittleness and slow crystallization rate are caused, the crystallinity of the thermoplastic polyester is low, and the heat resistance is reduced. By adding the chain extender, a bridge can be formed between two polymers through the reaction of carboxyl, amino and other active groups, the molecular weight is obviously increased, and the crystallinity is improved. However, active groups in the existing chain extender are distributed in several types, the steric hindrance is large during the reaction, and a good chain extension effect can be realized only by adding more chain extenders, but the problem that the discharge speed of a screw extruder is unstable and the screw extruder is blocked due to the fact that the material is easily accumulated and coagulated at the head of the screw extruder in the processing process due to the excessive addition of the chain extenders is solved.
The Chinese invention patent CN202110599126.5 discloses a polyester composition with high melt viscosity and a preparation method thereof, wherein the viscosity of the polyester composition is improved by introducing a chain extender with higher epoxy equivalent, but epoxy groups are distributed intensively, the steric hindrance is larger during the reaction, and the technical effect of high viscosity can be achieved only by adding higher amount. The Chinese invention patent CN202011474258.7 discloses an application of a chain extender in improving the viscosity of a polyester compound, wherein a carboxyl addition type chain extender and a hydroxyl addition type chain extender are added to carry out a chain extension reaction on polyester, the two reaction type chain extenders need to be added in batches, and the reaction steps are relatively complicated.
Disclosure of Invention
In order to reduce the usage amount of the chain extender and increase the reaction effect of the chain extender, the first aspect of the invention provides a reactive chain extender with high active groups, and the preparation raw materials comprise the following components in parts by weight: 900-1100 parts of solvent, 1-5 parts of dispersant, 90-110 parts of reaction monomer, 0.1-1 part of initiator and 0.5-2 parts of chain transfer agent.
In a preferred embodiment, the dispersing agent is selected from one or more of styrene maleic anhydride copolymer, polyvinyl alcohol, calcium chloride, sodium hydroxide, polyacrylic acid, polymethacrylate, gelatin and sodium alginate.
As a preferred embodiment, the dispersant is a combination of calcium chloride, sodium hydroxide, styrene maleic anhydride copolymer.
As a preferred embodiment, the weight ratio of calcium chloride, sodium hydroxide and styrene maleic anhydride copolymer is 1: (1-5): (1-3).
As a preferred embodiment, the weight ratio of calcium chloride, sodium hydroxide and styrene maleic anhydride copolymer is 1: (2-4): 1.
as a preferred embodiment, the weight ratio of calcium chloride, sodium hydroxide and styrene maleic anhydride copolymer is 1:3:1.
as a preferred embodiment, the reactive monomer is selected from the group consisting of styrene, glycidyl methacrylate, methyl methacrylate, butyl methacrylate, acrylonitrile, lauryl methacrylate, and combinations of at least three thereof.
As a preferred embodiment, the reactive monomers include styrene, glycidyl methacrylate, methyl methacrylate, butyl methacrylate.
In a preferred embodiment, the reactive monomer is a combination of styrene, glycidyl methacrylate, methyl methacrylate, and butyl methacrylate.
In a preferred embodiment, the weight ratio of styrene, glycidyl methacrylate, methyl methacrylate and butyl methacrylate is (20-25): (70-73): (1-5): 1.
in a preferred embodiment, the weight ratio of styrene, glycidyl methacrylate, methyl methacrylate and butyl methacrylate is (23-25): (70-72): (3-5): 1.
in a preferred embodiment, the weight ratio of styrene, glycidyl methacrylate, methyl methacrylate and butyl methacrylate is 25:70:4:1.
in the experimental process, the applicant finds that a common chain extender is a copolymer of styrene and glycidyl methacrylate, but reactivity ratios of the styrene and the glycidyl methacrylate are different, so that epoxy groups in the formed chain extender are too concentrated, and the epoxy groups are not easy to react due to too large steric hindrance of benzene rings, so that the utilization rate of the chain extender is not high. The applicant creatively introduces the weight ratio of methyl methacrylate, butyl methacrylate, styrene, glycidyl methacrylate, methyl methacrylate and butyl methacrylate to 25:70:4:1, the reactivity ratio among all monomers is reduced, the distribution of epoxy groups is dispersed, the reaction rate between epoxy active groups and a thermoplastic polyester matrix is increased, and the utilization rate of a chain extender is improved. The dispersing agent calcium chloride, sodium hydroxide and styrene maleic anhydride copolymer are added simultaneously, so that the dispersing effect of epoxy groups in glycidyl methacrylate can be improved, the epoxy groups are prevented from being distributed in a concentrated manner, and the probable reason is guessed to be that: the styrene maleic anhydride copolymer has good compatibility with styrene, can well disperse chain extender monomers, reduce the steric effect between benzene rings, and promote the reaction compatibility between the chain extender and a matrix, thereby reducing the using amount of the chain extender and increasing the reaction effect of the chain extender.
In a preferred embodiment, the initiator is selected from one or more of benzoyl peroxide, lauroyl peroxide, potassium persulfate and azobisisobutyronitrile.
As a preferred embodiment, the initiator is benzoyl peroxide.
In a preferred embodiment, the chain transfer agent is selected from one or more of a radical polymerization chain transfer agent, a cationic polymerization chain transfer agent, and an anionic polymerization chain transfer agent.
As a preferred embodiment, the chain transfer agent for free radical polymerization is selected from one or a combination of two of xanthogen disulfide or aliphatic thiol.
As a preferred embodiment, the aliphatic mercaptan is selected from one or a combination of two of dodecyl mercaptan, hexadecyl mercaptan and octadecyl mercaptan.
As a preferred embodiment, the chain transfer agent is dodecyl mercaptan.
As a preferred embodiment, the solvent is selected from one or a combination of two of water, benzene, toluene, xylene, cyclohexane, methylene chloride and propylene oxide.
As a preferred embodiment, the solvent is water.
As a preferred embodiment, the molecular weight distribution of the chain extender is from 1.9 to 2.5.
The second aspect of the present invention provides a use of a reactive chain extender with high reactive groups, which is applied to a thermoplastic polyester material, preferably, the thermoplastic polyester material is selected from one or a combination of more of polybutylene terephthalate, polyethylene terephthalate, polytrimethylene terephthalate, polylactide, polybutylene adipate/terephthalate, and polyarylate.
Compared with the prior art, the invention has the following beneficial effects:
(1) The reactive chain extender with high active groups is prepared by combining the reactive monomers of styrene, glycidyl methacrylate, methyl methacrylate and butyl methacrylate, so that epoxy groups can be distributed in molecules more uniformly, and the utilization rate of epoxy reactive groups is improved.
(2) According to the reactive chain extender with high activity groups, the chain extender is introduced with the chain transfer agent dodecyl mercaptan and the catalyst benzoyl peroxide, so that the molecular weight of the chain extender can be controlled, and the reactive groups have a better dispersion effect in the chain extender molecules.
(3) The high-activity group reactive chain extender is prepared by adopting styrene, glycidyl methacrylate, methyl methacrylate and butyl methacrylate (20-25): (70-73): (1-5): 1, the content of the glycidyl methacrylate in the chain extender can be improved, and the reactivity of the chain extender is increased.
(4) The high-activity group reactive chain extender is prepared by adding a dispersant of calcium chloride, sodium hydroxide and a styrene maleic anhydride copolymer, and adopting the following steps of 1: (2-4): 1, the migration effect of the chain extender in the thermoplastic polyester is improved, the residue in the extrusion granulation process of the screw extruder is reduced, the discharge speed of the screw extruder is stable, and the problems of material blockage and local crosslinking cannot occur in long-time granulation.
(5) The reactive chain extender with high active groups can realize better effect of improving the intrinsic viscosity, enhance the impact strength of a melt and improve the compatibility among polyester materials by adopting lower addition amount.
Drawings
FIG. 1 is a GPC chart corresponding to example 1;
FIG. 2 is a GPC chart corresponding to example 2;
FIG. 3 is a GPC chart corresponding to example 3;
FIG. 4 shows a GPC chart corresponding to example 4.
Detailed Description
The present invention will be specifically described below by way of examples. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention.
In addition, the starting materials used are all commercially available, unless otherwise specified.
Example 1
A reactive chain extender with high active groups comprises the following raw materials in parts by weight: 1000 parts of solvent, 2.5 parts of dispersant, 100 parts of reaction monomer, 0.5 part of initiator and 1 part of chain transfer agent.
The reaction monomer is the combination of styrene, glycidyl methacrylate, methyl methacrylate and butyl methacrylate, and the weight ratio is 25:70:4:1.
the dispersing agent is a combination of calcium chloride, sodium hydroxide and styrene maleic anhydride copolymer, and the weight ratio is 1:3:1.
the styrene maleic anhydride copolymer was purchased from Polyscope and was model SMA-200.
The initiator is benzoyl peroxide.
The chain transfer agent is dodecyl mercaptan.
The solvent is water.
The preparation method of the reactive chain extender with high active groups comprises the following steps:
(1) Adding a dispersing agent into a solvent, mixing and stirring, adding a reaction monomer, a chain transfer agent and a catalyst, uniformly mixing and reacting, wherein the reaction temperature is 75 ℃, and the reaction time is 24 hours;
(2) After the reaction, the product is obtained by suction filtration, washing and drying.
Example 2
A reactive chain extender with high active groups comprises the following raw materials in parts by weight: 950 parts of solvent, 3 parts of dispersant, 100 parts of reaction monomer, 0.4 part of initiator and 1.2 parts of chain transfer agent.
The reaction monomer is the combination of styrene, glycidyl methacrylate, methyl methacrylate and butyl methacrylate, and the weight ratio is 24:71:3.5:1.
the dispersing agent is a combination of calcium chloride, sodium hydroxide and styrene maleic anhydride copolymer, and the weight ratio is 1:2.5:1.
the styrene maleic anhydride copolymer was purchased from Polyscope and was model SMA-200.
The initiator is benzoyl peroxide.
The chain transfer agent is dodecyl mercaptan.
The solvent is water.
The preparation method of the reactive chain extender with high active groups comprises the following steps:
(1) Adding a dispersing agent into a solvent, mixing and stirring, adding a reaction monomer, a chain transfer agent and a catalyst, uniformly mixing and reacting, wherein the reaction temperature is 75 ℃, and the reaction time is 24 hours;
(2) After the reaction, the product is obtained by suction filtration, washing and drying.
Example 3
The specific steps of a reactive chain extender with high active groups and the application thereof are the same as those of example 1, and the difference is that the reactive monomer is the combination of styrene, glycidyl methacrylate, methyl methacrylate and butyl methacrylate, and the weight ratio is 24:72:3.5:1.
example 4
The specific steps of a reactive chain extender with high active groups are the same as those of example 1, and the difference is that the dispersant is the combination of calcium chloride, sodium hydroxide and styrene maleic anhydride copolymer, and the weight ratio is 1:3.5:1.
example 5
The specific steps of the reactive chain extender with high active groups and the application thereof are the same as those of the example 1, and the difference is that the addition amount of the chain transfer agent is 0.
Performance testing
GPC data: the molecular weights of the reactive chain extenders prepared in examples 1-5 were tested using GPC gel permeation chromatography. The test results are shown in table 1.
TABLE 1
Mn number average molecular weight/Dalton Mw weight average molecular weight/Dalton D molecular weight distribution
Example 1 5247 10928 2.08
Example 2 5401 10355 1.92
Example 3 6473 13769 2.13
Example 4 4817 11357 2.35
Example 5 62468 188533 3.02

Claims (10)

1. The reactive chain extender with high active groups is characterized by comprising the following raw materials in parts by weight: 900-1100 parts of solvent, 1-5 parts of dispersant, 90-110 parts of reaction monomer, 0.1-1 part of initiator and 0.5-2 parts of chain transfer agent.
2. The reactive chain extender of claim 1, wherein the dispersant is selected from one or more of styrene maleic anhydride copolymer, polyvinyl alcohol, calcium chloride, sodium hydroxide, polyacrylic acid, polymethacrylate, gelatin and sodium alginate.
3. The reactive chain extender of high reactive groups according to claim 1 or 2, characterized in that the reactive monomer is selected from the group of at least three of styrene, glycidyl methacrylate, methyl methacrylate, butyl methacrylate, acrylonitrile, lauryl methacrylate.
4. The reactive chain extender with high reactive group according to claim 1 or 2, characterized in that the reactive monomer comprises styrene, glycidyl methacrylate, methyl methacrylate, butyl methacrylate.
5. The reactive chain extender with high reactive groups as claimed in claim 1 or 2, wherein the initiator is selected from one or more of benzoyl peroxide, lauroyl peroxide, potassium persulfate and azobisisobutyronitrile.
6. The reactive chain extender with high activity group as claimed in claim 1 or 2, wherein the chain transfer agent is selected from one or more of chain transfer agent for free radical polymerization, chain transfer agent for cationic polymerization and chain transfer agent for anionic polymerization.
7. The reactive chain extender of high reactive groups according to claim 6, wherein the chain transfer agent for free radical polymerization is selected from one or a combination of two of xanthogen disulfide or aliphatic thiol.
8. The reactive chain extender of high reactive groups according to claim 1 or 2, characterized in that the solvent is selected from one or a combination of two of water, benzene, toluene, xylene, cyclohexane, methylene chloride, propylene oxide.
9. The highly reactive group reactive chain extender according to claim 1 or 2, wherein the molecular weight distribution of the chain extender is from 1.9 to 2.5.
10. Use of a reactive chain extender with high reactive groups according to any of claims 1 to 9 in thermoplastic polyester materials, preferably selected from polybutylene terephthalate, polyethylene terephthalate, polytrimethylene terephthalate, polylactide, polybutylene adipate/terephthalate, polyarylate, or a combination of any one or more thereof.
CN202111433721.8A 2021-11-29 2021-11-29 Reactive chain extender with high-activity groups and application thereof Pending CN115466350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111433721.8A CN115466350A (en) 2021-11-29 2021-11-29 Reactive chain extender with high-activity groups and application thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111433721.8A CN115466350A (en) 2021-11-29 2021-11-29 Reactive chain extender with high-activity groups and application thereof

Publications (1)

Publication Number Publication Date
CN115466350A true CN115466350A (en) 2022-12-13

Family

ID=84364418

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111433721.8A Pending CN115466350A (en) 2021-11-29 2021-11-29 Reactive chain extender with high-activity groups and application thereof

Country Status (1)

Country Link
CN (1) CN115466350A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018121138A1 (en) * 2016-12-27 2018-07-05 金发科技股份有限公司 Graft copolymer containing epoxy group and application thereof
CN109096430A (en) * 2018-07-25 2018-12-28 嘉兴华雯化工有限公司 A kind of novel reactive quadripolymer and preparation method thereof
CN112778454A (en) * 2021-01-22 2021-05-11 上海涵点科技有限公司 Polyepoxy chain extender and preparation method and application thereof
CN113185637A (en) * 2021-04-09 2021-07-30 华南理工大学 Chain extender of terpolymer of methyl styrene-methacrylate ester-glycidyl acrylate and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018121138A1 (en) * 2016-12-27 2018-07-05 金发科技股份有限公司 Graft copolymer containing epoxy group and application thereof
CN109096430A (en) * 2018-07-25 2018-12-28 嘉兴华雯化工有限公司 A kind of novel reactive quadripolymer and preparation method thereof
CN112778454A (en) * 2021-01-22 2021-05-11 上海涵点科技有限公司 Polyepoxy chain extender and preparation method and application thereof
CN113185637A (en) * 2021-04-09 2021-07-30 华南理工大学 Chain extender of terpolymer of methyl styrene-methacrylate ester-glycidyl acrylate and preparation method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王四海;: "环氧聚合型扩链剂的合成与表征", 太原理工大学学报, vol. 44, no. 06, pages 709 - 712 *

Similar Documents

Publication Publication Date Title
US3055859A (en) Impact-resistant plastic compositions comprising a styrene polymer and a cross-linked acrylic acid ester polymer, and process for preparing same
AU612670B2 (en) Polycarboxylic acids with higher thickening capacity and better clarity
US4590241A (en) Polymer blends compatibilized with reactive polymers extended with miscible nonreactive polymers
CN112778454B (en) Polyepoxy chain extender and preparation method and application thereof
US20080206503A1 (en) Solid concentrate composition for polymeric chain extension
US4145381A (en) Thermoplastic graft copolymers
WO2018121138A1 (en) Graft copolymer containing epoxy group and application thereof
CN113234308B (en) Method for improving compatibility of biodegradable blend by using low molecular weight functional copolymer and blend prepared by method
CN111961157A (en) Carboxyl butyronitrile latex for gloves and gloves produced by same
CN109776809A (en) Easy crosslinked bio degradative resin and preparation method thereof
AU586617B2 (en) Polymer blends containing a polymer having pendant oxazoline groups
WO2021208234A9 (en) Solvent-free adhesion-promoting chain extender, preparation method therefor, and application thereof
CN109517183B (en) Heterozygotic epoxy acrylate side chain modified polyacrylic resin and synthetic method thereof
CN108239242B (en) Graft copolymer containing acid anhydride group and application thereof
CN115466350A (en) Reactive chain extender with high-activity groups and application thereof
CN102020746A (en) Application of epoxy functionalized acrylic ester polymer
EP0146965A2 (en) Polymer blends containing a polymer having pendant oxazoline groups
US11795258B2 (en) Method for preparing core-shell copolymer, core-shell copolymer prepared therefrom and resin composition including the same
WO2018121137A1 (en) Graft copolymer containing reactive group and use thereof
EP0215888A1 (en) Improved methacrylate polymers and compositions
CN115490803A (en) Preparation process and application of degradable chain extender with good compatibility
CN116199827A (en) Branched structure toughening agent and preparation method and application thereof
JPS59142242A (en) Resin composition having excellent antistatic property
CN110615873A (en) Comb-shaped epoxy group-containing compatilizer and preparation method thereof
KR20200004504A (en) Acrylic copolymer composition, method for preparing the copolymer composition and resin composition comprising the copolymer composition

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Country or region after: China

Address after: 201500 1st floor, building 2, 16387 Puwei Road, Shanyang Town, Jinshan District, Shanghai

Applicant after: Shanghai Handian New Materials Co.,Ltd.

Address before: 201500 1st floor, building 2, 16387 Puwei Road, Shanyang Town, Jinshan District, Shanghai

Applicant before: SHANGHAI HANDIAN TECHNOLOGY Co.,Ltd.

Country or region before: China

CB02 Change of applicant information